A Street Light Pole Casts a Shadow of Length 40

question 251

Multiple Choice

A street light pole casts a shadow of length 40 ft at the same moment that a man who is 5 ft and 6 in tall has a shadow of length 12 ft. How high is the street light rounded to the nearest tenth of a foot?

• A) 18.3 ft
• B) 18.4 ft
• C) 69.8 ft

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Definitions:

Biological Membrane

A lipid bilayer structure that encloses the cellular contents of living cells and regulates the passage of substances in and out of cells.

Trans Membrane

Pertaining to or spanning across a cellular membrane, often referring to proteins that extend through the bilayer and interact with both the inside and outside of a cell.

Fluid Mosaic Model

The currently accepted model of the plasma membrane and other cell membranes, in which protein molecules “float” in a fluid phospholipid bilayer.

Lipid Bilayer

The lipid bilayer is a fundamental structure forming cell membranes, composed of two layers of phospholipids, which serves as a barrier to protect cellular contents.